Wiping in device for shoe uppers



May 8, 1962 Filed July 22. 1960 J. VLCVEK ETAL 3,032 791 WIPING INDEVICE FOR SHOE UPPERS 2 Sheets-Sheet 1 l l l I l l 11 INVENTORS.

BY Lamzr Arnasz y 1962 J. VLCMEK ETAL 3,032 791 WIPING IN DEVICE FORSHOEUPPERS Filed July 22, 1960 2 Sheets-Sheet 2 INVENTORS.

United tates The present invention relates to a device for wiping in afolded shoe upper which has been lasted and clamped by a profiled mouldmember along the periphery of the last.

The heretofore known wiping devices comprise individual wiping memberswhich are separately controlled and actuated by an intricatedrivingmechanism. The laying or adjusting of the folded upper, inparticular in the toe portion, is rather difiicult with suchconventional wiping devices and in addition thereto the edges of theinsole are often creased along their circumference when the wipingdevice engages the edge of the last. Insofar as one-piece wiping membersare used, they cannot be employed for unsymmetrical shapes, inparticular for childrens footwear.

The present invention aims at removing the aforesaid drawbacks.According to the invention a system of resilient wiping members isprovided, to which common movement is imparted from a circular segmentby means of inclined slots arranged therein.

An exemplary embodiment of the device incorporating the invention isshown in the accompanying drawing, wherein:

FIG. 1 shows the device in plan view, a part of the covering plate beingtaken off for the sake of a better understanding,

FIG. 2 is a section along the line 22 in FIG. 1,

FIG. 3 is a sectional view taken along the line 33 in FIG. 1 and FIG. 4is a sectional view taken along the line 4-4 in FIG. 3.

The device according to the invention comprises substantially asupporting bracket 1 provided in its upper part with a recess 2 coveredby a plate 27. A circular segment shaped disc 3 is rotatably inserted inthe recess 2, elongated slots 4 being arranged in said disc andobliquely inclined relative to corresponding radii of the disc. In thelower part of the bracket 1 radial grooves 5 are provided about the axisof rotation of the disc 3 at uniform distances from each other in afan-like manner, slides 6 being mounted for movement in said grooves andsecured by plates 7 against falling out of the grooves 5. Each slide 6is equipped with a pin 8 and a roller 9 adapted to travel in arespective slot 4 of the circular segment disc 3.

An elongated carrier member 11 is mounted for a rocking movement on apin it} and extends radially inwardly and outwardly from this pin. Theoutwardly extending rear portion 12 of the carrier member 11 is taperedso that its free end is normally spaced from the slide 6 to permit therocking movement of the carrier member. A helical compression spring 13urges the rear portion 12 away from the slide 6.

The front portion of the carrier member 11 forms a rounded nose 14 whichabuts against a wedge shaped stop 15 when the carrier member movesradially inward as seen in FIG. 3. The abutting face of the stop 15 isdownwardly obliquely inclined relative to the direction of the carriermember movement so that the front portion of the carrier member isdeflected downward, as viewed in FIGS. 2 and 3, against the restraint ofthe spring 13 by the abutting engagement of the nose 14 with the stop15. The stop 15 is mounted on the plate 27 by means of a screw 16 andextends into the radially innermost portion of the atent O 3,932,791Patented May 8, 1962 groove 5. The screw 16 engages a radially elongatedslot 28 in the plate 27, so that the radial position of the stop 15 isadjustable.

An elongated wiping member 18 of resilient plate material is secured tothe underside of each carrier member 11 by two screws 17. The frontportion of each wiping member extends toward the axis of rotation of thedisc 3 beyond the nose 14 of the corresponding carrier member 11 into anopen space 29 about the axis of rotation of the disc 3. The frontportion opposite the axis forms a leading edge which extends into alateral projection 19. The leading edge of each wiper member isobliquely transverse to a radius of the disc 3 in such a manner that therespective projection 19 is closer to the axis of rotation of the discthan the remainder of the leading edge.

The outer circumference of the disc 3 carries a gear rim 24) whichmeshingly engages a rack 21 longitudinally slidable on the bracket 1.

A former member 22 is resiliently mounted on the plate 27 and projectsdownwardly therefrom into the open space 29 to a level above the commonplane of movement of the wiping members 18. The former member 22 has anedge which conforms to the perimeter of an insole which is to be securedto shoe uppers by the device of the invention. During movement towardthe axis of the disc 3, the front edges of the wiping members 18 movethrough a position of axial alignment with the edge of the former member22. V The drawing also shows elements of a lasted shoe upper 25 which issecured on a last 24 by means of a mold member 26. The sole portion ofthe last 24 carries an insole 23.

The afore-described device operates asfollows:

.The shoe upper 25 which has been lasted in a known Way and fixed bymeans of the mold member 26 along the periphery of the last 24, isplaced in the space 29 between the wiping members 18 axially oppositethe former member 22 and is secured in this position. An insole 23 ispositioned on the flat upwardly facing sole portion of the last. Atleast one of the corresponding face portions of the insole and of theupper which will be secured to each other by the wiping-in process iscoated with adhesive in the usual manner. Upon a given impulse anot-illustrated motor displaces the rack 21, which due to its engagementwith the gear rim 20 turns the circular segment 3. The rollers 9, whichroll along the inclined slots 4 in the circular segment 3-, aredisplaced towards the axis of the disc 3, pushing out the slides 6 inthe same direction and together with them the wiping members 18.

The wiping members 18 are shown in FIG. 2 in their outwardly retractedposition. When they are moved radially inward toward the positionillustrated in FIG. 3, their leading edges engage the rim of the shoeupper, which up to now has assumed a position perpendicular to theinsole, and start folding it over the edge of the last 24. Since theformer member 22 is placed at a certain distance above the insole 2'3,the rim portion of the shoe upper is initially in frictional engagementwith the former member 22 so that a uniform distribution of folds in thebent rim of the shoe upper is attained. The wiping members 18, which onreaching the rim of the shoe extend in a common plane slightly above theedge of the last, are in their final movement axially deflected towardsthe last 2'4 due to the nose 14- striking the stop 15 and areconsequently resiliently pressed against the folds in the shoe upper.This completes the wiping in of the upper.

It is an advantage of the invention that the drive of the wiping memberis very simple. The radial engagement of the wiping members with the rimof the shoe upper at the beginning of the wiping-in process and the fullpressure of the wiping members brought to bear on the upper 25 in anaxial direction at the end of the travel of the Wiping members isadvantageous as the adhesive is not squeezed out and driven ahead of thewiping members, but is rather pressed into two connected pieces ofmaterial simultaneously along the entire interface. Moreover, due to theresiliency of the wiping members any danger of creasing the rims of theinsole is eliminated and the use of a soft insole made possible.Finally, the arrangement and shape of the wiping members and inparticular the fact that their leading edge is extended to form alateral projection, permits each projection during radially inwardmovement of the corresponding wiping member to overlap the leading edgeof the adjacent member. This eliminates the danger of clamping thematerial of the upper rim between two wiping members, ensuring at thesame time a regular and uniform formation of folds in the rim of theshoe upper.

We claim: 1. A device for wiping in the lasted uppers of a shoecomprising, in combination, (a) a support; (b) segment means mounted onsaid support; (c) means for actuating rotary movement of said segmentmeans about an axis on said support; a plurality of wiping memberscircumferentially spaced about said axis; and (e) motion transmittingmeans engaging said segment means and said wiping members for jointlymoving said wiping members in respective directions toward. and awayfrom said axis in a substantially common plane transverse of said axiswhen said segment means rotates. 2. A device as set forth in claim 1,wherein each of said wiper members has a front portion facing said axisand further comprising abutment means for axially defleeting said frontportion from said common plane when said wiping members jointly movetoward said axis.

3. A device as set forth in claim 2, wherein said wiping members are ofresilient material.

4. A device as set forth in claim 2, wherein said motion transmittingmeans include a plurality of carrier members pivotable about respectiveaxes transverse of said directions, said wiping members beingrespectively mounted on said carrier members for joint movementtherewith in said directions, and said carrier members engaging saidabutment means when the respective wiping members move toward said axis.

5. A device as set forth in claim 1, wherein each of said wiping membershas a front portion facing said axis in the direction of movement ofsaid wiping member, said front portion having a leading edge elongatedobliquely transversely of said direction whereby a portion of saidleading edge is nearer said axis than the remainder of said edge.

6. A device as set forth in claim 1, wherein each of said wiping membershas a front portion facing said axis, and further comprising a formermember having an edge portion extending in a plane spacedly adjacentsaid common plane and axially alignable with said front portion duringmovement of said wiping members toward and away from said axis.

7. A device as claimed in claim 6, wherein the former member isresiliently mounted.

8. A device as set forth in claim 1, wherein said motion transmittingmeans include a guide member secured to each of said wiping members forjoint movement therewith in said directions, said segment means beingformed with a plurality of slots respectively elongated obliquelytransversely of said directions; each of said guide members engaging acorresponding one of said slots.

References Cited in the file of this patent UNITED STATES PATENTS391,788 Goodhue Oct. 30, 1888 511,906 OBalger Jan. 2, 1894 2,955,302Schoenmakers Oct. 11, 1960

